A few years ago I read something that opened my eyes about smartphones - the larger they got the better battery life they got. It makes sense: - Screens use en

A few years ago I read something that opened my eyes about smartphones - the larger they got the better battery life they got. It makes sense: - Screens use energy as the square of their diagonal dimension. - Batteries store energy as the square of their diagonal dimension. So it's a wash? No! Since there are other things inside the phone whose dimensions are essentially fixed (the phone itself), the proportion of battery area to the screen area tends to one as the phone gets larger. My 2016 iPhone SE (daily driver) has a battery about a third the size of the phone. I can imagine that an iPhone 13 Pro has a battery at least 2/3s the total size. So you have to choose two of three: Battery life, fast phone (uses more power), or small phone. I chose: none of the above. My next phone will be a Pinephone no matter what it's dimensions, battery life or performance is. We have to break the power of Big Tech.